Everyone's favorite gaming company has just introduced virtual Trading Cards. These new cards will be given out for playing Steam games, with half of the set being provided in each game. To collect the other half, you'll have to collect and trade with other gamers like yourself. These cards can then be turned into game badges and tradable Steam community items.
The idea isn't completely new. Other games have provided cards or collectibles instead of in-game achievements. These cards a bit more useful than some of the other implementations I've seen. For instance, a complete set of cards can be turned into a game badge. These game badges will also come with XP, helping you level up quicker and earn more rewards for leveling up.
It's a cool idea that I think will work extremely well with the Steam community. If you want to learn more about the new program, you can head over to the page Steam has set up.